Toshiba MMY-MAP1006FT8(J)P-E Service Manual page 156

Check code
Outdoor 7-segment display
Sub-code
01: TS1
F 1 2
03: TS2
F 1 5 –
F 1 6 –
F 2 3 –
F 2 4 –
F 3 1 –
H05 –
H06 –
H 0 7 –
01: TK1 sensor trouble
02: TK2 sensor trouble
H08
04: TK4 sensor trouble
05: TK5 sensor trouble
H15 –
01: TK1 oil circuit trouble
02: TK2 oil circuit trouble
H16
04: TK4 oil circuit trouble
05: TK5 oil circuit trouble
J10
–
L 0 4 –
Number of priority indoor units
L06 (check code L05 or L06 depending
on individual unit)
L 0 8 –
L 1 0 –
L12
–
L 1 7 –
–
L18
L23
–
–
L24
L 2 8 –
Display of receiving unit
TCC-LINK
Indicator light block
central control
or main remote
Operation Timer Ready
Flash
controller
display
F 1 2 A
F 1 5 A
F 1 6 A
F 2 3 A
F 2 4 A
F 3 1 I S
H05
H06
H 0 7
H08
H15
H16
J10
L 0 4 I S
L 0 5 I S
L 0 6 I S
L ( 0 ) 8 I S
L 1 0 I S
L12
L 1 7 I S
L18 SIM
L23 SIM
L24
L 2 8 I S
Typical problem site
Outdoor suction
Outdoor suction temperature sensor
L T temperature
(TS1,TS2) has been open/short-circuited.
sensor (TS1,TS2) trouble
oor temperature
Wiring trouble in outdoor temperature
L T sensor (TE1,TL1)
sensors (TE1,TL1) has been detected.
wiring trouble
Outdoor pressure sensor Wiring trouble in outdoor pressure sensors
L T
(PD, PS) wiring trouble (PD, PS) has been detected.
Low pressure
L T Output voltage of low pressure sensor (PS) is zero.
sensor (PS) trouble
Output voltage of high pressure sensor (PD) is
High pressure sensor
L T zero or provides abnormal readings when
(PD) trouble
compressors have been turned off.
Outdoor EEPROM is troubled (alarm and
M Outdoor EEPROM trouble shutdown for header unit and continued operation
for follower unit)
Outdoor discharge Wiring/installation trouble or detachment of
temperature sensor outdoor discharge temperature sensor (TD1)
(TD1) wiring trouble has been detected.
Activation of low-pressure Low pressure (Ps) sensor detects abnormally low
protection operating pressure.
Temperature sensor for oil level detection
L o w l i o e l v l e p o r e t t c o i n
(TK1,TK2,TK4,TK5) detects abnormally low oil
level.
Trouble in temperature
Temperature sensor for oil level detection
sensor for oil level
(TK1,TK2,TK4,TK5) has been open/short-
detection
circuited.
(TK1,TK2,TK4,TK5)
Outdoor discharge Wiring/installation trouble or detachment of
temperature sensor outdoor discharge temperature sensor (TD2)
(TD2) wiring trouble has been detected.
No temperature change is detected by
Oil level detection temperature sensor for oil level detection
circuit trouble (TK1,TK2,TK4,TK5) despite compressor having
been started.
FS unit has been shutdown in one refrigerant line
FS unit overflow trouble
due to detection of overflow
Identical refrigerant line address has been
Duplicated outdoor
M assigned to outdoor units belonging to different
refrigerant line address
refrigerant piping systems.
Duplicated priority indoor
More than one indoor unit have been set up as
M unit (as displayed on
priority indoor unit.
priority indoor unit)
Duplicated priority indoor
unit (as displayed on More than one indoor unit have been set up
M
indoor unit other than as priority indoor unit.
priority indoor unit)
Indoor group address not Address setting have not been performed for one
M
set or more indoor units (also detected at indoor end).
Outdoor unit capacity has not been set (after P.C.
M O u d t o r o c a p a c y t i n t o s t e
board replacement).
FS unit(s) system trouble FS unit(s) outside the application setting
Outdoor model Old model outdoor unit (prior to 6 series) has been
M
incompatibility trouble connected.
Cooling/heating selection Cooling/heating cycle trouble resulting from
piping trouble is detected
unit trouble
SW setting mistake
Bit 3 and 4 of SW17 are turning on.
・FS unit(s) detects address identical to its own.
FS unit(s) setting trouble
・Duplicated priority indoor units operation mode.
Too many outdoor units More than three outdoor units have been
M
connected connected.
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Description of check code